PMID- 31810352 OWN - NLM STAT- MEDLINE DCOM- 20200417 LR - 20200417 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 20 IP - 23 DP - 2019 Dec 2 TI - Thermoresponsive Catechol Based-Polyelectrolyte Complex Coatings for Controlled Release of Bortezomib. LID - 10.3390/ijms20236081 [doi] LID - 6081 AB - To overcome the high relapse rate of multiple myeloma (MM), a drug delivery coating for functionalization of bone substitution materials (BSM) is reported based on adhesive, catechol-containing and stimuli-responsive polyelectrolyte complexes (PECs). This system is designed to deliver the MM drug bortezomib (BZM) directly to the anatomical site of action. To establish a gradual BZM release, the naturally occurring caffeic acid (CA) is coupled oxidatively to form poly(caffeic acid) (PCA), which is used as a polyanion for complexation. The catechol functionalities within the PCA are particularly suitable to form esters with the boronic acid group of the BZM, which are then cleaved in the body fluid to administer the drug. To achieve a more thorough control of the release, the thermoresponsive poly(N-isoproplyacrylamide-co-dimethylaminoethylmethacrylate) (P(NIPAM-co-DMAEMA)) was used as a polycation. Using turbidity measurements, it was proven that the lower critical solution temperature (LCST) character of this polymer was transferred to the PECs. Further special temperature dependent attenuated total reflection infrared spectroscopy (ATR-FTIR) showed that coatings formed by PEC immobilization exhibit a similar thermoresponsive performance. By loading the coatings with BZM and studying the release in a model system, via UV/Vis it was observed, that both aims, the retardation and the stimuli control of the release, were achieved. FAU - Reis, Berthold AU - Reis B AD - Leibniz-Institut fur Polymerforschung Dresden e.V., Department Polyelectrolytes and Dispersions, Hohe Strasse 6, 01069 Dresden, Germany. AD - Technische Universitat Dresden, Department of Chemistry and Food Chemistry, 01062 Dresden, Germany. FAU - Vehlow, David AU - Vehlow D AD - Leibniz-Institut fur Polymerforschung Dresden e.V., Department Polyelectrolytes and Dispersions, Hohe Strasse 6, 01069 Dresden, Germany. AD - Technische Universitat Dresden, Department of Chemistry and Food Chemistry, 01062 Dresden, Germany. FAU - Rust, Tarik AU - Rust T AD - Universitat Paderborn, Department of Chemistry, Warburger Str. 100, 33106 Paderborn, Germany. FAU - Kuckling, Dirk AU - Kuckling D AUID- ORCID: 0000-0001-6003-151X AD - Universitat Paderborn, Department of Chemistry, Warburger Str. 100, 33106 Paderborn, Germany. FAU - Muller, Martin AU - Muller M AUID- ORCID: 0000-0001-8961-4604 AD - Leibniz-Institut fur Polymerforschung Dresden e.V., Department Polyelectrolytes and Dispersions, Hohe Strasse 6, 01069 Dresden, Germany. AD - Technische Universitat Dresden, Department of Chemistry and Food Chemistry, 01062 Dresden, Germany. LA - eng GR - Project number 107540325 - TRR 79, project M7/Deutsche Forschungsgemeinschaft/ PT - Journal Article DEP - 20191202 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Caffeic Acids) RN - 0 (Catechols) RN - 0 (Coated Materials, Biocompatible) RN - 0 (Delayed-Action Preparations) RN - 0 (Methacrylates) RN - 0 (Polyelectrolytes) RN - 0 (Polymers) RN - 69G8BD63PP (Bortezomib) RN - LF3AJ089DQ (catechol) RN - O0V97PV2G1 (2-(dimethylamino)ethyl methacrylate) RN - U2S3A33KVM (caffeic acid) SB - IM MH - Bortezomib/chemistry/*pharmacology MH - Caffeic Acids/chemical synthesis/*chemistry MH - Catechols/chemistry/pharmacology MH - Coated Materials, Biocompatible/chemical synthesis/chemistry MH - Delayed-Action Preparations/chemistry/pharmacology MH - *Drug Delivery Systems MH - Humans MH - Methacrylates/chemical synthesis/chemistry/pharmacology MH - Multiple Myeloma/*drug therapy/pathology MH - Polyelectrolytes/chemical synthesis/chemistry/pharmacology MH - Polymers/chemical synthesis/chemistry/pharmacology PMC - PMC6928965 OTO - NOTNLM OT - bortezomib OT - catechol chemistry OT - controlled release OT - multiple myeloma OT - poly(caffeic acid) OT - polyelectrolyte complex coatings OT - thermoresponsive coatings COIS- The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. EDAT- 2019/12/08 06:00 MHDA- 2020/04/18 06:00 PMCR- 2019/12/01 CRDT- 2019/12/08 06:00 PHST- 2019/10/29 00:00 [received] PHST- 2019/11/27 00:00 [revised] PHST- 2019/11/29 00:00 [accepted] PHST- 2019/12/08 06:00 [entrez] PHST- 2019/12/08 06:00 [pubmed] PHST- 2020/04/18 06:00 [medline] PHST- 2019/12/01 00:00 [pmc-release] AID - ijms20236081 [pii] AID - ijms-20-06081 [pii] AID - 10.3390/ijms20236081 [doi] PST - epublish SO - Int J Mol Sci. 2019 Dec 2;20(23):6081. doi: 10.3390/ijms20236081.